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Residual energy liberation of the products of235U fission by thermal neutrons

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Rather accurate data on the dose rate of the residual β radiation in235U exist for the interval 10–5·105 sec; the data can be described by Eq. (3) with an error of up to 5%.

Formulas of the type kt−1.2 more or less satisfactorily describe the residual energy liberation for t=10−105 sec. One must assume k=1.4 for β radiation, and k=1.5 for γ radiation.

In order to determine the dose rate of the residual energy liberation at exposure times of 60–107 sec, one can recommend Eq. (5). For t<60 sec, Eq. (2) can be employed.

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Literature Cited

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    V. M. Kolobashkin et al., Beta Radiation of Fission Products [in Russian], Atomizdat, Moscow (1978).

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Additional information

Translated from Atomnaya Énergiya, Vol. 51, No. 1, pp. 16–19, July, 1981.

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Gribin, A.A., Pologikh, B.G. Residual energy liberation of the products of235U fission by thermal neutrons. At Energy 51, 421–424 (1981).

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  • Radiation
  • Exposure Time
  • Dose Rate
  • Energy Liberation
  • Thermal Neutron